Synchronize printing string format of storage node ID

[cthulhu-rider]

Currently we print storage node ID (which is actually its public key) in different formats. For example:

neofs-node/pkg/innerring/processors/netmap/process_peers.go

Lines 60 to 66 in cd71de6

	keyString := hex.EncodeToString(nodeInfo.PublicKey())
	updated := np.netmapSnapshot.touch(keyString, np.epochState.EpochCounter(), nodeInfoBinary)
	if updated {
	np.log.Info("approving network map candidate",
	zap.String("key", keyString))

neofs-node/cmd/neofs-cli/modules/control/snapshot.go

Lines 64 to 65 in cd71de6

	cmd.Printf("Node %d: %s %s %v\n", i+1,
	base58.Encode(node.GetPublicKey()),

While both formats can be casted to each other, it's not really convenient to compare the values visually. I propose to work out for this case and others like it a string format at the convention level. Why conventions? For example, for object/container IDs, a string format is declared at the protocol level.

To conveniently follow the convention, it is proposed to create a special function in the SDK, which will be used whenever it is required to comply with the generally accepted format.

Btw which format do you prefer? For me its hex 🐑. @fyrchik @carpawell

[roman-khimov]

Btw which format do you prefer?

https://governance.neo.org/

I don't think I've ever seen a public key printed in base58.

[acid-ant]

Blocked by nspcc-dev/neofs-sdk-go#349

[acid-ant]

Reopened because #1880 still in progress